EP3266561A1 - Laser ablation and welding system - Google Patents

Laser ablation and welding system Download PDF

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Publication number
EP3266561A1
EP3266561A1 EP17184608.2A EP17184608A EP3266561A1 EP 3266561 A1 EP3266561 A1 EP 3266561A1 EP 17184608 A EP17184608 A EP 17184608A EP 3266561 A1 EP3266561 A1 EP 3266561A1
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EP
European Patent Office
Prior art keywords
clamping
ablation
workpieces
station
welding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17184608.2A
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German (de)
French (fr)
Other versions
EP3266561B1 (en
Inventor
Gerhard Alber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baosteel Lasertechnik GmbH
Original Assignee
Wisco Lasertechnik GmbH
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Publication date
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Publication of EP3266561A1 publication Critical patent/EP3266561A1/en
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/083—Devices involving movement of the workpiece in at least one axial direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/26—Seam welding of rectilinear seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/361—Removing material for deburring or mechanical trimming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
    • B23K37/0235—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track the guide member forming part of a portal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/02—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of drums or rotating tables or discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/18—Sheet panels

Definitions

  • the invention relates to an automatic laser ablation and welding system according to claim 1.
  • the disadvantage here is that the removal from a processing station, the insertion and positioning in a new processing station and then the clamping for processing brings a considerable amount of handling, which significantly reduces the efficiency of a processing station.
  • the object of the invention is therefore to improve the processing of workpieces in laser processing stations in their efficiency.
  • This object is achieved by a plant according to claim 1 for the process of laser ablation of at least two workpieces with subsequent laser welding at least two workpieces.
  • an automatic laser ablation and welding system for joining at least two workpieces, in particular two sheets, wherein the ablation and welding system comprises at least one clamping unit, a first positioning station, an ablation station, a second positioning station and a welding station.
  • the laser ablation and welding system is characterized in that the at least two workpieces are ablated, joined and welded in a single clamping unit.
  • the invention offers the advantage that handling and re-clamping is avoided by a processing step, whereby the processing time is shortened and thus the efficiency is increased.
  • a turntable with a plurality of clamping units is included, wherein the clamping units are movable over the turntable from position to position.
  • the arrangement of the clamping units on a turntable allows each cycle of the process is carried out successively circulating, and the clamping units with tensioned workpieces in the form of a processing line or processing line successively through different processing stations.
  • the clamping unit comprises at least one clamping magnet per workpiece.
  • An extended embodiment provides that at least one clamping magnet per workpiece in the clamping unit is arranged to float and can be fixed in a floating position via fixing means, in particular clamping devices.
  • both the first and the second clamping means can be designed as a clamping magnet.
  • form the first clamping means as a clamping magnet and the second clamping means as a non-positive clamping clamping device, which is the preferred economical and efficient solution.
  • the workpieces After the first insertion of at least two workpieces in a clamping unit, the workpieces remain in the clamping unit until removal after machining. In the machining cycle, only a controlled and defined repositioning and orientation of the strained Workpieces without a removal is required.
  • laser ablation also called laser vaporization.
  • the high power density laser radiation used in this case leads to rapid heating at the surface, whereby material is removed.
  • Laser welding is a welding process in which the energy required to connect the workpieces is provided by means of a laser.
  • FIG. 1a a laser ablation and welding system 1 according to the invention in a perspective plan view.
  • the laser ablation and welding system 1 comprises a turntable 2 with a total of six arranged clamping units 3 at six different processing positions I to VI.
  • the machining positions I to VI are arranged circumferentially about the axis of rotation 4 and can be converted in the machining cycle via a rotation of 60 ° into each other.
  • III and V linear traverses 10, 11 and 12 are arranged.
  • a laser ablation device 13 is arranged, which can be moved by displacement on the linear crosshead 10 in an area above and below the clamping unit 3 in the position II to perform the processing step of the laser ablation.
  • the linear crossbeam 11 carries a machining head for the optional operation of cleaning by brushing or polishing, whereby this process is carried out by retracting the machining head 14 in the region of the clamping unit 3 in the processing station III.
  • a clamping holder 15 is arranged, which fixes the workpieces in the processing station on the clamping unit 3 at position IV to reposition the first clamping means to provide the alignment of the joining edges for the subsequent welding operation in position V available.
  • the linear traverse 12 is provided, which in a corresponding manner the laser welding head 16 in the processing region of the clamping unit 3 at the position V in and out designed to be movable out.
  • FIG. 1b schematically shows the flow of the machining process according to an arrangement on a turntable 2 after FIG. 1a ,
  • the process steps a and b and c take place in position I.
  • the clamping unit 3 is passed to the position II for processing in the ablation station 13 by rotating the turntable 2.
  • the method step d is performed.
  • the optional process step of cleaning is carried out in position III, wherein, as described above, a brush head 14 cleans the joining edges after ablation, in particular polished.
  • the application of the brush head or the polishing unit can be done either from above, from below or on both sides.
  • the clamping unit 3 is transferred from the position IV to the position V, where then the welding of the aligned in the joining position workpieces by means of the laser welding head 16.
  • FIG. 2a shows a schematic representation of a clamping unit 20, which clamping means 21, 22 in the form of clamping magnets.
  • the clamping means 21, 22 are slidably mounted on a frame 23, 24 and can each have two parallel spaced apart Threaded spindles (25, 26 and 27, 28) float toward one another or away from one another.
  • the threaded spindles (25 to 28) are driven by drive units 29, 30 in such a way that workpieces (not shown) held on the clamping means 21, 22 can be moved toward one another.
  • a stop 31 is inserted with positioning pins 32 in direction 33 between the clamping means 21 and 22 with workpieces arranged thereon, so that the joining edges of the workpieces floating on the positioning pins 32 by movement of the clamping means 21, 22 via the threaded spindles 25th until 28 can be approximated and struck.
  • the positions of the clamping means 21, 22 are locked via blocking devices 40 to 43, so that in a further processing of the workpieces on the clamping unit 20 in another processing station (I to VI), the positioning is maintained as the clamping unit remains in contact with the workpieces until completion of machining.
  • clamping unit 20 on support means 45 which are shown here only by way of example.
  • FIG. 2b shows an embodiment of the clamping unit 49 with arranged workpieces 50, 51.
  • the clamping magnets 52, 53 hold the workpieces and are approached floating on the drives 54, 55 according to the above-described embodiment of the stop pins 56 and positioned.
  • the workpieces 50, 51 are shown shortened in the present case, so that the supports 58 are visible.
  • the entire clamping unit 49 is mounted on a turntable 60.
  • An unrepresented Vorposition réelles Kunststoff allows you to insert the Workpieces 50, 51 by means of a single robot handling device, such as a nipple gripper on a multi-axis robot, so that even in the pre-positioning a relatively precise alignment of the joint edges 61, 62 of the workpieces 50, 51 takes place.
  • FIG. 3a shows a schematic representation of the movement of the laser heads in the ablation step.
  • the two workpieces 80, 81 aligned in ablation position are machined at their joining edges 82, 83 by means of a first laser head 84 from their upper side and a second laser head 85 from their lower side.
  • the laser heads run along the contour of the joining edges 82, 83 along the path described by arrows 86, 87, 88 and 89, so that the ablation step takes place without the laser heads facing one another at a processing time.
  • FIG. 3b shows a schematic representation in the longitudinal direction of the laser heads 84 and 85, wherein the laser head 84 at the end of the web 86 ready to change along the track 87 and the laser head 85 makes the change along the path 89.
  • the workpieces 80, 81 are held by clamping magnets 90, 91, wherein the improved precision of the machining on the Joining edge 82, 83 with the laser heads 84, 85 entrained pairs of rollers 92, 93 and 94, 95 are moved to hold the joining edges 82, 83 exactly in their machining position in vertical alignment.
  • FIG. 4 shows the sequence in seven steps of the displacement of the first clamping means.
  • the workpieces 100 and 101 are moved into the station IV and are held at this time with the first clamping means 102 and 103 in the form of clamping magnets.
  • the second clamping means 104 and 105 are open at this time and exert no clamping force on the workpieces 100, 101.
  • a stop 106 is introduced.
  • the second clamping means 104, 105 by closing an upper jaw 107 against a lower clamping block 108 in the region of the first workpiece 100 and closing an upper jaw 109 against a lower clamping block 110 in the region of the workpiece 101st closed.
  • first clamping means 102 and 103 are released and moved along a direction of movement 111 and 112 on the stop 106. This can be done via the previously described drives for swimming a position.
  • the second clamping means 104 and 105 hold the workpieces 100 and 101 in position.
  • step No. 4 After completion of the movement of the first clamping means 102 and 103 in step No. 4, the second clamping means 104, 105 are released after the first clamping means 102, 103, the workpieces 100, 101 have tightened again secured by the magnetic field of the clamping magnets has been activated.
  • step no.5 then takes place a first start-up of the workpiece 101 via movement of the clamping means 103 with a clamped workpiece 101 to the stop 106 for alignment in a joining position for a subsequent welding step.
  • step # 6 the Stop 106 then removed, after which this workpiece 100 is approached with its joining edge 113 in abutment against the joining edge 114 of the second workpiece 101 in step No.
  • the resulting, machined workpiece is transferred to the position VI for unloading, for example, by an unloading robot, after which the clamping unit can be further rotated to the position I for reloading and first alignment.
  • the first and the second tensioning means can also be designed differently than described in the exemplary embodiments.
  • the second clamping means of a stationary arrangement of clamping jaws in the station IV.
  • a mitbewegten clamping block for example in the form of the support 45, 58 consist.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)

Abstract

Es wird eine Automatische Laser-Ablations- und Schweißanlage (1) zum Fügen von mindestens zwei Werkstücken, insbesondere zwei Blechen vorgeschlagen, wobei die Ablations- und Schweißanlage (1) mindestens eine Spanneinheit (3), eine erste Positionierstation (I), eine Ablationsstation (II), eine zweite Positionierstation (III) und eine Schweißstation (V) umfasst, wobei die mindestens zwei Werkstücke in einer einzigen Spanneinheit (3) ablatiert, gefügt und verschweißt werden.An automatic laser ablation and welding system (1) for joining at least two workpieces, in particular two sheets, is proposed, wherein the ablation and welding system (1) comprises at least one clamping unit (3), a first positioning station (I), an ablation station (II), a second positioning station (III) and a welding station (V), wherein the at least two workpieces are ablated in a single clamping unit (3), joined and welded.

Description

Die Erfindung betrifft eine automatische Laser-Ablations- und Schweißanlage nach Anspruch 1.The invention relates to an automatic laser ablation and welding system according to claim 1.

Im Stand der Technik der DE 10 2010 060 958 A1 sind Anlagen bekannt, bei welchen Werkstücke im Arbeitsbereich eines Lasers positioniert, ausgerichtet und sodann bearbeitet werden. Üblicher Weise werden derartige, im Bezug auf die Ausrichtung der Werkstücke hoch sensible Vorgänge immer in einer spezialisierten Arbeitsstation in der Reihenfolge ausgeführt, dass jeder Bearbeitungsschritt ein Einlegen und Ausrichten des Werkstücks in einer Spannvorrichtung umfasst.In the prior art of DE 10 2010 060 958 A1 Systems are known in which workpieces are positioned, aligned and then processed in the working range of a laser. Typically, such highly sensitive processes with respect to the alignment of the workpieces are always performed in a specialized workstation in the order that each processing step involves loading and aligning the workpiece in a jig.

Nachteilig dabei ist, dass die Entnahme aus einer Bearbeitungsstation, das Einlegen und Positionieren in eine neue Bearbeitungsstation und sodann das Spannen zur Bearbeitung einen erheblichen Handhabungsaufwand mit sich bringt, was die Effizienz einer Bearbeitungsstation erheblich mindert.The disadvantage here is that the removal from a processing station, the insertion and positioning in a new processing station and then the clamping for processing brings a considerable amount of handling, which significantly reduces the efficiency of a processing station.

Aufgabe der Erfindung ist es daher, die Bearbeitung von Werkstücken in Laser-Bearbeitungsstationen in ihrer Effizienz zu verbessern.The object of the invention is therefore to improve the processing of workpieces in laser processing stations in their efficiency.

Diese Aufgabe wird durch eine Anlage nach Anspruch 1 für den Vorgang des Laser-Ablatierens mindestens zweier Werkstücke mit anschließendem Laser-Verschweißen mindestens zweier Werkstücke gelöst.This object is achieved by a plant according to claim 1 for the process of laser ablation of at least two workpieces with subsequent laser welding at least two workpieces.

Vorteilhafte Weiterbildungen sind in den abhängigen Ansprüchen angegeben.Advantageous developments are specified in the dependent claims.

Erfindungsgemäß ist eine automatische Laser-Ablations- und Schweißanlage zum Fügen von mindestens zwei Werkstücken, insbesondere zwei Blechen, offenbart, wobei die Ablations- und Schweißanlage mindestens eine Spanneinheit, eine erste Positionierstation, eine Ablationsstation, eine zweite Positionierstation und eine Schweißstation umfasst. Die Laser-Ablations- und Schweißanlage ist dadurch gekennzeichnet, dass die mindestens zwei Werkstücke in einer einzigen Spanneinheit ablatiert, gefügt und verschweißt werden.According to the invention, an automatic laser ablation and welding system is disclosed for joining at least two workpieces, in particular two sheets, wherein the ablation and welding system comprises at least one clamping unit, a first positioning station, an ablation station, a second positioning station and a welding station. The laser ablation and welding system is characterized in that the at least two workpieces are ablated, joined and welded in a single clamping unit.

Die Erfindung bietet den Vorteil, dass ein Handhaben und Umspannen von einem Bearbeitungsschritt vermieden wird, wodurch die Bearbeitungszeit verkürzt und damit die Effizienz erhöht wird.The invention offers the advantage that handling and re-clamping is avoided by a processing step, whereby the processing time is shortened and thus the efficiency is increased.

In einer bevorzugten Ausführung der Ablations- und Schweißanlage ist vorgesehen, dass ein Drehtisch mit einer Mehrzahl von Spanneinheiten umfasst ist, wobei die Spanneinheiten über den Drehtisch von Position zu Position bewegbar sind.In a preferred embodiment of the ablation and welding system it is provided that a turntable with a plurality of clamping units is included, wherein the clamping units are movable over the turntable from position to position.

Die Anordnung der Spanneinheiten auf einem Drehtisch erlaubt, dass jeder Takt des Verfahrens nacheinander umlaufend durchgeführt wird, und die Spanneinheiten mit gespannten Werkstücken in Form einer Bearbeitungsstraße bzw. Bearbeitungslinie nacheinander verschiedene Bearbeitungsstationen durchlaufen.The arrangement of the clamping units on a turntable allows each cycle of the process is carried out successively circulating, and the clamping units with tensioned workpieces in the form of a processing line or processing line successively through different processing stations.

Besonders vorteilhaft ist es dabei, wenn die Spanneinheit mindestens einen Spannmagneten pro Werkstück umfasst.It is particularly advantageous if the clamping unit comprises at least one clamping magnet per workpiece.

Über Spannmagneten lassen sich die Werkstücke in Form von Blechen oder dergleichen präzise fixieren, positionieren und lösen, ohne dass mechanische Klemmvorrichtungen an die Werkstückkontur angepasst werden müssen.About clamping magnets, the workpieces in the form of Precise fixing, positioning and loosening sheets or the like without having to adapt mechanical clamping devices to the workpiece contour.

Eine erweiterte Ausführung sieht vor, dass mindestens ein Spannmagnet pro Werkstück in der Spanneinheit schwimmend angeordnet bewegbar ist und über Fixiermittel, insbesondere Klemmvorrichtungen in einer angeschwommenen Position fixierbar ist.An extended embodiment provides that at least one clamping magnet per workpiece in the clamping unit is arranged to float and can be fixed in a floating position via fixing means, in particular clamping devices.

Auf diese Weise lassen sich das Spannen und das oben beschriebene Anschwimmen an die Positioniermittel leichter realisieren weil lediglich die schwimmende Bewegung des Magnetkopfes in einer Ebene, insbesondere durch inkrementelle Bewegung zweier paralleler, jedoch nicht synchroner voneinander beabstandeter Vorschubachsen für den Spannmagneten ausgeführt werden muss.In this way, the clamping and the above-described Anschwimmen to the positioning means easier to realize because only the floating movement of the magnetic head in a plane, in particular by incremental movement of two parallel, but not synchronous spaced apart feed axes must be performed for the clamping magnet.

Es ist ergänzend auszuführen, dass sowohl das erste als auch das zweite Spannmittel als Spannmagneten ausgeführt sein kann. In der Praxis hat sich herausgestellt, dass das erste Spannmittel als Spannmagnet und das zweite Spannmittel als kraftschlüssige Spann-Klemmvorrichtung auszubilden, die bevorzugte wirtschaftliche und effizienteste Lösung darstellt.It should be additionally stated that both the first and the second clamping means can be designed as a clamping magnet. In practice it has been found that form the first clamping means as a clamping magnet and the second clamping means as a non-positive clamping clamping device, which is the preferred economical and efficient solution.

Wesentlich ist, dass die Werkstücke nie aus dem Spannmittel entnommen werden müssen, selbst wenn eine Mehrzahl von Bearbeitungsschritten erfolgt, so dass Aufwand zu Handhabung der Werkstücke nahezu gänzlich entfällt.It is essential that the workpieces must never be removed from the clamping means, even if a plurality of processing steps, so that effort to handle the workpieces almost completely eliminated.

Nach dem ersten Einlegen von mindestens zwei Werkstücken in eine Spanneinheit verbleiben die Werkstücke in der Spanneinheit bis zur Entnahme nach der Bearbeitung. Im Bearbeitungszyklus erfolgt lediglich eine kontrollierte und definierte Umpositionierung und Ausrichtung der gespannten Werkstücke, ohne dass eine Entnahme erforderlich ist.After the first insertion of at least two workpieces in a clamping unit, the workpieces remain in the clamping unit until removal after machining. In the machining cycle, only a controlled and defined repositioning and orientation of the strained Workpieces without a removal is required.

Die Bearbeitungsschritte der Ablation und des Schweißens mittels Laser sind dem Fachmann hinreichend bekannt. Der Vollständigkeit halber wird ausgeführt, dass als Laserablation, auch Laserverdampfen genannt, das Abtragen von Material von einer Oberfläche durch Beschuss mit vorzugsweise gepulster Laserstrahlung bezeichnet wird. Die hierbei Verwendung findende Laserstrahlung mit hoher Leistungsdichte führt zur rapiden Erhitzung an der Oberfläche, wodurch Material entfernt wird. Das Schweißen mittels Laser ist ein Schweißverfahren, bei welchem die benötigte Energie zur Verbindung der Werkstücke mittels eines Lasers bereitgestellt wird.The processing steps of ablation and laser welding are well known to those skilled in the art. For the sake of completeness, it is stated that the ablation of material from a surface by bombardment with preferably pulsed laser radiation is referred to as laser ablation, also called laser vaporization. The high power density laser radiation used in this case leads to rapid heating at the surface, whereby material is removed. Laser welding is a welding process in which the energy required to connect the workpieces is provided by means of a laser.

Im Folgenden soll die Erfindung anhand schematischer Ausführungsbeispiele erläutert werden. Die Erfindung ist jedoch nicht auf die dargestellte Ausführungsform beschränkt.In the following, the invention will be explained with reference to schematic embodiments. However, the invention is not limited to the illustrated embodiment.

Es zeigen:

Figur 1a:
eine Ablations- und Schweißanlage in Draufsicht;
Figur 1b:
ein Flussdiagramm eines Ablations- und Schweißverfahrens;
Figur 2a:
eine schematische Darstellung einer Spanneinheit;
Figur 2b:
eine schematische Darstellung einer Spanneinheit mit Werkstück;
Figur 3a:
eine schematische Darstellung der Bewegung der Laserköpfe im Ablationsschritt;
Figur 3b:
eine schematische Darstellung in Längsrichtung der Laserköpfe im Ablationsschritt;
Figur 4:
Ablauf der Ausrichtung von einer Ablationsposition in eine Fügeposition.
Show it:
FIG. 1a
an ablation and welding system in plan view;
FIG. 1b
a flowchart of an ablation and welding process;
FIG. 2a:
a schematic representation of a clamping unit;
FIG. 2b:
a schematic representation of a clamping unit with workpiece;
FIG. 3a:
a schematic representation of the movement of the laser heads in the ablation step;
FIG. 3b:
a schematic representation in the longitudinal direction of the laser heads in the ablation step;
FIG. 4:
Course of alignment from an ablation position to a joining position.

Im Einzelnen zeigt Figur 1a eine erfindungsgemäße Laser-Ablations- und Schweißanlage 1 in perspektivischer Draufsicht. Die Laser-Ablations- und Schweißanlage 1 umfasst einen Drehtisch 2 mit insgesamt sechs angeordneten Spanneinheiten 3 an sechs verschiedenen Bearbeitungspositionen I bis VI. Die Bearbeitungspositionen I bis VI sind umlaufend um die Drehachse 4 angeordnet und können im Bearbeitungstakt über eine Drehung um 60° ineinander übergeführt werden.In detail shows FIG. 1a a laser ablation and welding system 1 according to the invention in a perspective plan view. The laser ablation and welding system 1 comprises a turntable 2 with a total of six arranged clamping units 3 at six different processing positions I to VI. The machining positions I to VI are arranged circumferentially about the axis of rotation 4 and can be converted in the machining cycle via a rotation of 60 ° into each other.

An der Bearbeitungsstation II, III sowie V sind Lineartraversen 10, 11 und 12 angeordnet. Auf der Lineartraverse 10 ist eine Laser-Ablationsvorrichtung 13 angeordnet, welche durch Verschiebung auf der Lineartraverse 10 in einen Bereich oberhalb und unterhalb der Spanneinheit 3 in der Position II bewegt werden kann, um den Bearbeitungsschritt der Laser-Ablation durchzuführen.At the processing station II, III and V linear traverses 10, 11 and 12 are arranged. On the linear crosshead 10, a laser ablation device 13 is arranged, which can be moved by displacement on the linear crosshead 10 in an area above and below the clamping unit 3 in the position II to perform the processing step of the laser ablation.

Die Lineartraverse 11 trägt einen Bearbeitungskopf für den optionalen Vorgang des Reinigens durch Bürsten oder Polieren, wobei auch dieser Vorgang durch Einfahren des Bearbeitungskopfs 14 in den Bereich der Spanneinheit 3 in der Bearbeitungsstation III erfolgt.The linear crossbeam 11 carries a machining head for the optional operation of cleaning by brushing or polishing, whereby this process is carried out by retracting the machining head 14 in the region of the clamping unit 3 in the processing station III.

In der Station IV ist ein Klemmhalter 15 angeordnet, welcher zur Umpositionierung der ersten Spannmittel die Werkstücke in der Bearbeitungsstation auf der Spanneinheit 3 an Position IV fixiert, um die Ausrichtung der Fügekanten für den nachfolgenden Schweißvorgang in Position V zur Verfügung zu stellen.In the station IV, a clamping holder 15 is arranged, which fixes the workpieces in the processing station on the clamping unit 3 at position IV to reposition the first clamping means to provide the alignment of the joining edges for the subsequent welding operation in position V available.

An Position V ist die Lineartraverse 12 vorgesehen, welche in entsprechender Weise den Laserschweißkopf 16 linear in den Bearbeitungsbereich der Spanneinheit 3 an der Position V hinein- und herausbewegbar ausgestaltet.At position V, the linear traverse 12 is provided, which in a corresponding manner the laser welding head 16 in the processing region of the clamping unit 3 at the position V in and out designed to be movable out.

Figur 1b zeigt schematisch den Ablauf des Bearbeitungsverfahrens entsprechend einer Anordnung auf einem Drehtisch 2 nach Figur 1a. Die Verfahrensschritte a sowie b und c finden in der Position I statt. Sodann wird die Spanneinheit 3 in die Position II zur Bearbeitung in der Ablationsstation 13 durch Drehen des Drehtischs 2 weitergereicht. Dort wird der Verfahrensschritt d ausgeführt. Der optionale Verfahrensschritt der Reinigung wird in Position III vorgenommen, wobei, wie oben beschrieben, ein Bürstenkopf 14 die Fügekanten nach erfolgter Ablation reinigt, insbesondere poliert. Die Anwendung des Bürstenkopfes oder der Poliereinheit kann entweder von oben, von unten oder beidseitig erfolgen. FIG. 1b schematically shows the flow of the machining process according to an arrangement on a turntable 2 after FIG. 1a , The process steps a and b and c take place in position I. Then, the clamping unit 3 is passed to the position II for processing in the ablation station 13 by rotating the turntable 2. There, the method step d is performed. The optional process step of cleaning is carried out in position III, wherein, as described above, a brush head 14 cleans the joining edges after ablation, in particular polished. The application of the brush head or the polishing unit can be done either from above, from below or on both sides.

In Position IV erfolgt ein Umspannen und Ausrichten (Fügen) der behandelten Fügekanten der miteinander zu verschweißenden Werkstücke, wobei die Verfahrensschritte e bis j ausgeführt werden.In position IV, a re-clamping and aligning (joining) of the treated joining edges of the workpieces to be welded together takes place, the method steps e to j being carried out.

Durch weitere Drehung um 60° des Drehtisches 2 wird die Spanneinheit 3 von der Position IV in die Position V überführt, wo sodann das Schweißen der in Fügeposition ausgerichteten Werkstücke mittels des Laserschweißkopfs 16 erfolgt.By further rotation through 60 ° of the turntable 2, the clamping unit 3 is transferred from the position IV to the position V, where then the welding of the aligned in the joining position workpieces by means of the laser welding head 16.

Nach Abschluss des Bearbeitungsverfahrens und weiterer Rotation des Drehtisches 2 mit der Spanneinheit 3 aus der Schweißstation V in die Entnahmeposition VI wird die fertig bearbeitete Platine, bestehend aus zwei miteinander verschweißten Werkstücken zur Entladung bereitgestellt. Figur 2a zeigt eine schematische Darstellung einer Spanneinheit 20, welche Spannmittel 21, 22 in Form von Spannmagneten aufweist. Die Spannmittel 21, 22 sind verschiebbar auf einem Rahmen 23, 24 angeordnet und können über jeweils zwei parallele, voneinander beabstandete Gewindespindeln (25,26 und 27,28) schwimmend aufeinander zu- bzw. voneinander wegbewegt werden. Die Gewindespindeln (25 bis 28) werden dabei durch Antriebseinheiten 29, 30 derart angetrieben, dass auf den Spannmitteln 21, 22 gehaltene Werkstücke (nicht dargestellt) aufeinander zubewegt werden können. Zur exakten Positionierung in einer ersten Ablationsposition wird ein Anschlag 31 mit Positionierpins 32 in Richtung 33 zwischen die Spannmittel 21 und 22 mit darauf angeordneten Werkstücken eingebracht, sodass die Fügekanten der Werkstücke schwimmend an die Positionierpins 32 durch Bewegung der Spannmittel 21, 22 über die Gewindespindeln 25 bis 28 angenähert und angeschlagen werden können. Sobald die erste Ablationsposition erreicht ist, werden über Sperrvorrichtungen 40 bis 43 die Positionen der Spannmittel 21, 22 arretiert, sodass bei einer weiteren Bearbeitung der Werkstücke auf der Spanneinheit 20 in einer anderen Bearbeitungsstation (I bis VI) die Positionierung erhalten bleibt, da die Spanneinheit bis zum Abschluss der Bearbeitung mit den Werkstücken in Verbindung bleibt. Alternativ oder ergänzend zu Sperrvorrichtungen besteht auch die Möglichkeit, die Spannmittel über die Antriebseinheiten 29,30 zu fixieren.After completion of the machining process and further rotation of the turntable 2 with the clamping unit 3 from the welding station V in the removal position VI, the finished board, consisting of two welded together workpieces is provided for discharging. FIG. 2a shows a schematic representation of a clamping unit 20, which clamping means 21, 22 in the form of clamping magnets. The clamping means 21, 22 are slidably mounted on a frame 23, 24 and can each have two parallel spaced apart Threaded spindles (25, 26 and 27, 28) float toward one another or away from one another. The threaded spindles (25 to 28) are driven by drive units 29, 30 in such a way that workpieces (not shown) held on the clamping means 21, 22 can be moved toward one another. For exact positioning in a first ablation position, a stop 31 is inserted with positioning pins 32 in direction 33 between the clamping means 21 and 22 with workpieces arranged thereon, so that the joining edges of the workpieces floating on the positioning pins 32 by movement of the clamping means 21, 22 via the threaded spindles 25th until 28 can be approximated and struck. Once the first ablation position is reached, the positions of the clamping means 21, 22 are locked via blocking devices 40 to 43, so that in a further processing of the workpieces on the clamping unit 20 in another processing station (I to VI), the positioning is maintained as the clamping unit remains in contact with the workpieces until completion of machining. Alternatively or in addition to locking devices, it is also possible to fix the clamping means via the drive units 29,30.

Um auch große Werkstücke einfach und präzise aufnehmen und handhaben zu können, weist die Spanneinheit 20 Auflagemittel 45 auf, welche vorliegend nur exemplarisch dargestellt sind.In order to record and handle even large workpieces easily and precisely, the clamping unit 20 on support means 45, which are shown here only by way of example.

Figur 2b zeigt eine Ausführungsform der Spanneinheit 49 mit angeordneten Werkstücken 50, 51. Die Spannmagnete 52, 53 halten die Werkstücke und werden schwimmend über die Antriebe 54, 55 entsprechend der oben beschriebenen Ausführung an die Anschlagpins 56 angefahren und positioniert. Die Werkstücke 50, 51 sind vorliegend verkürzt dargestellt, sodass die Auflagen 58 sichtbar sind. Die gesamte Spanneinheit 49 ist auf einem Drehtisch 60 gelagert. Ein nicht dargestellter Vorpositionierungsschritt ermöglicht das Einlegen der Werkstücke 50, 51 mittels eines einzigen Roboter-Handhabungsgeräts, beispielsweise einen Sauger-Greifer an einem Mehrachsroboter, sodass bereits in der Vorpositionierung eine verhältnismäßig präzise Ausrichtung der Fügekanten 61, 62 der Werkstücke 50, 51 erfolgt. FIG. 2b shows an embodiment of the clamping unit 49 with arranged workpieces 50, 51. The clamping magnets 52, 53 hold the workpieces and are approached floating on the drives 54, 55 according to the above-described embodiment of the stop pins 56 and positioned. The workpieces 50, 51 are shown shortened in the present case, so that the supports 58 are visible. The entire clamping unit 49 is mounted on a turntable 60. An unrepresented Vorpositionierungsschritt allows you to insert the Workpieces 50, 51 by means of a single robot handling device, such as a nipple gripper on a multi-axis robot, so that even in the pre-positioning a relatively precise alignment of the joint edges 61, 62 of the workpieces 50, 51 takes place.

Der Vollständigkeit halber ist auszuführen, dass anstatt der Gewindespindeln 25 bis 28 auch andere Vorrichtungen, beispielsweise Linearversteller, Pneumatik- oder Hydraulikversteller oder sonstige Aktuatoren in Frage kommen, die durch entsprechende Anordnung und Fixierung ein Anschwimmen im Sinne der Erfindung ermöglichen. Insbesondere die Verwendung von Pneumatikzylindern kann den zusätzlichen Vorteil bieten, dass über den pneumatischen Steuerdruck eine definierte Kraft beim Anschwimmen ausgeübt werden kann, um die Position möglichst exakt einzustellen, bevor diese mittels Sperrvorrichtungen arretiert wird.For the sake of completeness, it should be pointed out that instead of the threaded spindles 25 to 28, other devices, for example linear adjusters, pneumatic or hydraulic adjusters or other actuators, are also possible, which make it possible to swim in the sense of the invention by appropriate arrangement and fixation. In particular, the use of pneumatic cylinders can provide the additional advantage that over the pneumatic control pressure, a defined force can be exerted when swimming to adjust the position as accurately as possible, before it is locked by means of locking devices.

Figur 3a zeigt eine schematische Darstellung der Bewegung der Laserköpfe im Ablationsschritt. Die zwei in Ablationsposition ausgerichteten Werkstücke 80, 81 werden an ihren Fügekanten 82, 83 mittels eines ersten Laserkopfs 84 von ihrer Oberseite sowie eines zweiten Laserkopfs 85 von ihrer Unterseite bearbeitet. Die Laserköpfe laufen dabei entlang der mit Pfeilen 86, 87, 88 sowie 89 beschriebenen Bahn einander nachfolgend die Kontur der Fügekanten 82, 83 ab, sodass der Ablationsschritt erfolgt, ohne dass die Laserköpfe zu einem Bearbeitungszeitpunkt einander gegenüberstehen. FIG. 3a shows a schematic representation of the movement of the laser heads in the ablation step. The two workpieces 80, 81 aligned in ablation position are machined at their joining edges 82, 83 by means of a first laser head 84 from their upper side and a second laser head 85 from their lower side. The laser heads run along the contour of the joining edges 82, 83 along the path described by arrows 86, 87, 88 and 89, so that the ablation step takes place without the laser heads facing one another at a processing time.

Figur 3b zeigt eine schematische Darstellung in Längsrichtung der Laserköpfe 84 sowie 85, wobei der Laserkopf 84 am Ende der Bahn 86 bereit zum Wechsel entlang der Bahn 87 steht und der Laserkopf 85 den Wechsel entlang der Bahn 89 vornimmt. Die Werkstücke 80, 81 werden durch Spannmagnete 90, 91 gehalten, wobei zur verbesserten Präzision der Bearbeitung an der Fügekante 82, 83 mit den Laserköpfen 84, 85 mitgeführte Rollenpaare 92, 93 sowie 94, 95 bewegt werden, um die Fügekanten 82, 83 exakt in ihrer Bearbeitungsposition in vertikaler Ausrichtung zu halten. FIG. 3b shows a schematic representation in the longitudinal direction of the laser heads 84 and 85, wherein the laser head 84 at the end of the web 86 ready to change along the track 87 and the laser head 85 makes the change along the path 89. The workpieces 80, 81 are held by clamping magnets 90, 91, wherein the improved precision of the machining on the Joining edge 82, 83 with the laser heads 84, 85 entrained pairs of rollers 92, 93 and 94, 95 are moved to hold the joining edges 82, 83 exactly in their machining position in vertical alignment.

Figur 4 zeigt den Ablauf in sieben Schritten der Versetzung des ersten Spannmittels.
Die Werkstücke 100 sowie 101 werden in die Station IV eingefahren und sind zu diesem Zeitpunkt mit den ersten Spannmitteln 102 sowie 103 in Form von Spannmagneten gehalten. Die zweiten Spannmittel 104 sowie 105 sind zu diesem Zeitpunkt geöffnet und üben keine Spannkraft auf die Werkstücke 100, 101 aus. Nach Einbringung in die Station IV wird ein Anschlag 106 eingebracht. In einem zweiten Schritt des Ablaufs in der Station IV werden die zweiten Spannmittel 104, 105 durch Schließen einer oberen Spannbacke 107 gegen einen unteren Spannbock 108 im Bereich des ersten Werkstücks 100 sowie Schließen einer oberen Spannbacke 109 gegen einen unteren Spannbock 110 im Bereich des Werkstücks 101 geschlossen. Sodann werden die ersten Spannmittel 102 sowie 103 gelöst und entlang einer Bewegungsrichtung 111 sowie 112 auf den Anschlag 106 zubewegt. Dies kann über die bereits vorab beschriebenen Antriebe zum Anschwimmen einer Position erfolgen. Die zweiten Spannmittel 104 sowie 105 halten dabei die Werkstücke 100 sowie 101 in Position. FIG. 4 shows the sequence in seven steps of the displacement of the first clamping means.
The workpieces 100 and 101 are moved into the station IV and are held at this time with the first clamping means 102 and 103 in the form of clamping magnets. The second clamping means 104 and 105 are open at this time and exert no clamping force on the workpieces 100, 101. After introduction into the station IV, a stop 106 is introduced. In a second step of the procedure in the station IV, the second clamping means 104, 105 by closing an upper jaw 107 against a lower clamping block 108 in the region of the first workpiece 100 and closing an upper jaw 109 against a lower clamping block 110 in the region of the workpiece 101st closed. Then, the first clamping means 102 and 103 are released and moved along a direction of movement 111 and 112 on the stop 106. This can be done via the previously described drives for swimming a position. The second clamping means 104 and 105 hold the workpieces 100 and 101 in position.

Nach Abschluss der Bewegung der ersten Spannmittel 102 sowie 103 im Schritt Nr.4 werden die zweiten Spannmittel 104, 105 gelöst, nachdem die ersten Spannmittel 102, 103 die Werkstücke 100, 101 wieder gesichert gespannt haben, indem das Magnetfeld der Spannmagnete aktiviert wurde. Im Schritt Nr.5 erfolgt sodann ein erstes Anfahren des Werkstücks 101 über Bewegung des Spannmittels 103 mit gespanntem Werkstück 101 an den Anschlag 106 zur Ausrichtung in einer Fügeposition für einen anschließenden Schweißschritt. Im Schritt Nr.6 wird der Anschlag 106 sodann entfernt, wonach im Schritt Nr.7 über Bewegung des ersten Spannmittels 102 mit darauf fixiertem Werkstück 100 dieses Werkstück 100 mit seiner Fügekante 113 auf Anschlag an die Fügekante 114 des zweiten Werkstücks 101 angefahren wird. Sodann werden die Positionen der ersten Spannmittel 102 sowie 103 in bekannter Weise verriegelt und die Spanneinheit in die Laser-Bearbeitungsstation V eingebracht, damit die Werkstücke 100, 101 miteinander verschweißt werden können.After completion of the movement of the first clamping means 102 and 103 in step No. 4, the second clamping means 104, 105 are released after the first clamping means 102, 103, the workpieces 100, 101 have tightened again secured by the magnetic field of the clamping magnets has been activated. In step no.5 then takes place a first start-up of the workpiece 101 via movement of the clamping means 103 with a clamped workpiece 101 to the stop 106 for alignment in a joining position for a subsequent welding step. In step # 6 the Stop 106 then removed, after which this workpiece 100 is approached with its joining edge 113 in abutment against the joining edge 114 of the second workpiece 101 in step No. 7 on movement of the first clamping means 102 with workpiece 100 fixed thereto. Then, the positions of the first clamping means 102 and 103 are locked in a known manner and introduced the clamping unit in the laser processing station V, so that the workpieces 100, 101 can be welded together.

Nach erfolgtem Verschweißen wird das resultierende, bearbeitete Werkstück in die Position VI zur Entladung, beispielsweise durch einen Entladeroboter überführt, wonach die Spanneinheit zur erneuten Beladung und ersten Ausrichtung in die Position I weitergedreht werden kann.After welding, the resulting, machined workpiece is transferred to the position VI for unloading, for example, by an unloading robot, after which the clamping unit can be further rotated to the position I for reloading and first alignment.

Das erste und das zweite Spannmittel können auch anders als in den Ausführungsbeispielen beschrieben ausgebildet sein. Insbesondere kann das zweite Spannmittel aus einer stationären Anordnung von Spannbacken in der Station IV. und einem mitbewegten Spannbock, beispielsweise in Form der Auflage 45, 58 bestehen.The first and the second tensioning means can also be designed differently than described in the exemplary embodiments. In particular, the second clamping means of a stationary arrangement of clamping jaws in the station IV. And a mitbewegten clamping block, for example in the form of the support 45, 58 consist.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

11
Anlageinvestment
22
Drehtischturntable
33
Spanneinheitclamping unit
1010
Lineartraverselinear Traverse
1111
Lineartraverselinear Traverse
1212
Lineartraverselinear Traverse
1313
Laser-AblationsvorrichtungLaser ablation
1414
Bearbeitungskopfprocessing head
1515
KlemmhalterTool holders
1616
LaserschweißkopfLaser welding head
2020
Spanneinheitclamping unit
2121
Spannmittelclamping means
2222
Spannmittelclamping means
2323
Rahmenframe
2424
Rahmenframe
25 - 2825 - 28
Gewindespindelscrew
2929
Antriebseinheitdrive unit
3030
Antriebseinheitdrive unit
3232
Positionierpinpositioning pin
3333
Richtungdirection
40 - 4340 - 43
Sperrvorrichtunglocking device
4545
Auflagemittelsupport means
4949
Spanneinheitclamping unit
5050
Werkstückworkpiece
5151
Werkstückworkpiece
5252
Spannmagnetclamping magnet
5353
Spannmagnetclamping magnet
5454
Antriebdrive
5555
Antriebdrive
6060
Drehtischturntable
6161
Fügekantejoining edge
6262
Fügekantejoining edge
8080
Werkstückworkpiece
8181
Werkstückworkpiece
8282
Fügekantejoining edge
8383
Fügekantejoining edge
8484
Laserkopflaser head
8585
Laserkopflaser head
86 - 8986 - 89
Bahntrain
9090
Spannmagnetclamping magnet
9191
Spannmagnetclamping magnet
92 - 9592 - 95
Rollenpaarroller pair
100100
Werkstückworkpiece
101101
Werkstückworkpiece
102102
Spannmittelclamping means
103103
Spannmittelclamping means
104104
Spannmittelclamping means
105105
Spannmittelclamping means
106106
Anschlagattack
107107
obere Spannbackeupper jaw
108108
unterer Spannbocklower vice
109109
obere Spannbackeupper jaw
110110
unterer Spannbocklower vice
111111
Bewegungsrichtungmovement direction
112112
Bewegungsrichtungmovement direction
113113
Fügekantejoining edge
114114
Fügekantejoining edge

Claims (4)

Automatische Laser-Ablations- und Schweißanlage (1) zum Fügen von mindestens zwei Werkstücken (50, 51, 80, 81), insbesondere zwei Blechen, wobei die Ablations- und Schweißanlage (1) mindestens eine Spanneinheit (3), eine erste Positionierstation, eine Ablationsstation, eine zweite Positionierstation und eine Schweißstation umfasst, dadurch gekennzeichnet, dass die mindestens zwei Werkstücke (50, 51, 80, 81) in einer einzigen Spanneinheit (3) ablatiert, gefügt und verschweißt werden.Automatic laser ablation and welding installation (1) for joining at least two workpieces (50, 51, 80, 81), in particular two sheets, wherein the ablation and welding installation (1) comprises at least one clamping unit (3), a first positioning station, an ablation station, a second positioning station and a welding station, characterized in that the at least two workpieces (50, 51, 80, 81) are ablated, joined and welded in a single clamping unit (3). Ablations- und Schweißanlage nach Anspruch 1, dadurch gekennzeichnet, dass ein Drehtisch(2) mit einer Mehrzahl von Spanneinheiten (3, 20, 49) umfasst ist, wobei die Spanneinheiten (3, 20, 49) über den Drehtisch (2) von Position zu Position bewegbar sind.Ablation and welding system according to claim 1, characterized in that a turntable (2) with a plurality of clamping units (3, 20, 49) is included, wherein the clamping units (3, 20, 49) on the turntable (2) of position are movable to position. Ablations- und Schweißanlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Spanneinheit (3, 20, 49) mindestens einen Spannmagneten (52, 53, 90, 91) pro Werkstück (50, 51, 80, 81) umfasst.Ablation and welding system according to claim 1 or 2, characterized in that the clamping unit (3, 20, 49) at least one clamping magnet (52, 53, 90, 91) per workpiece (50, 51, 80, 81). Ablations- und Schweißanlage nach Anspruch 3, dadurch gekennzeichnet, dass mindestens ein Spannmagnet (52, 53, 90, 91) pro Werkstück (50, 51, 80, 81) in der Spanneinheit (3, 20, 49) schwimmend angeordnet bewegbar ist und über Fixiermittel, insbesondere Klemmvorrichtungen in einer angeschwommenen Position fixierbar ist.Ablation and welding system according to claim 3, characterized in that at least one clamping magnet (52, 53, 90, 91) per workpiece (50, 51, 80, 81) in the clamping unit (3, 20, 49) arranged floating and is movable can be fixed via fixing means, in particular clamping devices in a flooded position.
EP17184608.2A 2014-09-08 2015-07-09 Laser ablation and welding system Active EP3266561B1 (en)

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DE102014112888.5A DE102014112888A1 (en) 2014-09-08 2014-09-08 Laser ablation and welding process for workpieces
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US10471551B2 (en) 2019-11-12
EP3191254A1 (en) 2017-07-19
US20170182603A1 (en) 2017-06-29
CN107073646B (en) 2019-12-13
EP3266561B1 (en) 2019-06-26
CN107073646A (en) 2017-08-18
ES2688757T3 (en) 2018-11-06
EP3191254B1 (en) 2018-06-27
DE102014112888A1 (en) 2016-03-10

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